Dynamic operating envelopes (DOEs), as a key enabler to facilitate DER integration, have attracted increasing attention in the past years. However, uncertainties, which may come from load forecast errors or inaccurate network parameters, have been rarely discussed in DOE calculation, leading to compromised quality of the hosting capacity allocation strategy. This letter studies how to calculate DOEs that are immune to such uncertainties based on a linearised unbalanced three-phase optimal power flow (UTOPF) model. With uncertain parameters constrained by norm balls, formulations for calculating Robust DOEs (RDOEs) are presented along with discussions on their tractability. Two cases, including a 2-bus illustrative network and a representative Australian network, are tested to demonstrate the effectiveness and efficiency of the proposed approach.
@article{arxiv.2302.13472,
title = {Linear OPF-based Robust Dynamic Operating Envelopes with Uncertainties in Unbalanced Distribution Networks},
author = {Bin Liu and Julio H. Braslavsky and Nariman Mahdavi},
journal= {arXiv preprint arXiv:2302.13472},
year = {2023}
}
Comments
Accepted by Journal of Modern Power Systems and Clean Energy (Section IV. Appendix forms part of our reponse to the review comments and, however, is not inlcuded in the final accepted version of the manusctipt.)